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物理学报. 2001, 50(4): 735-740.
doi: 10.7498/aps.50.735.
对超热电子诱生的磁场分布的估算
- 收稿日期: 2000-08-08
- 修回日期: 2000-10-30
- 刊出日期: 2001-02-05
English Abstract
CONFIGURATION OF MAGNETIC FIELDS INDUCED BY SUPERTHERMAL ELECTRONS
- Received Date:
08 August 2000
- Accepted Date:
30 October 2000
- Published Online:
05 February 2001
Abstract: Charge separation electric fields and magnetic fields induced by superthermal electrons escaped from plasmas have been evaluated using a very simple model. The magnitude and configuration of magnetic fields have been obtained. Generally, the circular-shaped magnetic fields are weak because of the charge separation electric field and the followed finite number of the escaped superthermal electrons, and they are mainly distributed in laser focus near the surface of the plasma because of the transverse motion of the escaped superthermal electrons. Only when the electron current is very strong (about kA through the cross-section with 1μm radius),can a megagauss magnetic field be obtained.
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Keywords:
- magnetic field /
- superthermal electron
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